JPH09280733A - Dry dust collector in grain drying and storage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent dust from discharging out of a grain drying/storing apparatus by mounting a filter protruding into a tank in each of a plurality of suction holes formed in a ceiling wall of a grain drying/storing apparatus, providing a suction chamber in such a manner as to cover each of the suction holes and connecting to the suction chamber a suction duct having a suction fan. SOLUTION: A plurality of suction holes 3 are formed in a ceiling wall of a tank 2 and a filtering cloth as a filter 4 is mounted in the suction hole 3 in such a manner as to protrude into the tank 2. A several number of 'L'- shaped air tubes 15 for periodically blowing compressed air generated by a compressor 21 are provided and a plurality of protruding outlets 16 located right above and facing the suction holes are provided in the air tubes 15. A suction chamber 5 covering the suction hole 3 is provided under the ceiling of the tank 2 and a suction duct 7 having a suction fan 6 is jointed to one side wall of the suction chamber 5. Thus, since a large sized dust collector and duct piping are no more needed, cost is reduced and space can be saved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain drying and storing device for drying and storing grains while stirring them, and more particularly to a dry dust collecting device in the grain drying and storing device.

[0002]

2. Description of the Related Art Conventionally, a dust collecting device in a grain drying and storing device that dries and stores this type of grain while stirring is
A large wet dust collector is provided in a space adjacent to the grain dry storage device, and exhaust is performed from the grain dry storage device to the wet dust collection device via a duct pipe to perform dust collection processing,
As shown in FIG. 3, a suction duct 52 having a dust suction port 54 facing the base end of a rigid auger 50 is supported by a supporting member 53 that revolves so as to revolve together with the supporting member 53. A dust suction device in the grain drying device 50 in which the base end side of the suction duct 52 is connected to the suction port 57 of the dust suction / exhaust device 56 via the connection duct 55 (actually developed 57-14554).
2) and so on.

[0003]

However, the wet dust collecting device is provided in the space adjacent to the grain drying and storing device described above, and the suction duct 52 revolves together with the supporting member 53 that revolves. So that its suction duct 5
The dust suction device in the grain drying device 50 in which the base end side of No. 2 is connected to the suction port 57 of the dust suction / exhaust device 56
5542) and the like require the cost of equipment such as a duct piping from a plurality of grain dry storage devices to a dust collector, a dust collector, and a space for them. Further, there is a problem that it is troublesome for the user because it is necessary to regularly process the sludge and the sewage generated by the dust collector.

Therefore, in view of the above problems, the present invention collects dust in the tank 2 of the grain drying and storing device 1 and does not discharge it to the outside of the grain drying and storing device 1 with a simple structure and at low cost. It is a technical object to provide a dry dust collecting device in a grain dry storage device that does not require the operation.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a tank floor plate 10 formed to be breathable.
And a blower 9 for ventilating the floor plate 10 from below and circulating dry air through the grains accumulated in the tank 2, and the floor plate 10.
A discharge screw horizontally installed on the upper surface and having the center of the floor plate 10 as the axis of revolution, and rotating around the revolution to discharge the grains to the grain discharge port 12 opened at the center of the floor plate 10. 11 and the equalizer 1 mounted on the upper center of the tank 2.
7 and a cylindrical or polygonal-shaped grain dry storage having a central part of the upper part of the inner cavity of the tank 2 suspended around a revolving axis and a stirring screw 20 for stirring the grain in the tank 2. In the device 1, a plurality of suction ports 3 are formed on the ceiling wall of the grain drying and storage device 1, and a filter 4 protruding into the tank 2 is attached to each suction port 3 so as to cover each of the suction ports 3. The technical means of providing the suction chamber 5 and connecting the suction duct 7 equipped with the suction fan 6 to the suction chamber 5 was taken.

Further, the above-mentioned means becomes more effective by making the jet port 16 branched from the air pipe 15 for sending the compressed air face directly above each suction port 3.

[0007]

The dust generated when drying the grains accumulated in the tank 2 is sucked by the suction fan 6 together with the dry air that is blown from the lower part of the tank 2 through the air-permeable floor plate 10 by the blower 9. When this is done, the air dedusted by adhering it to the filter 4 attached to the suction port 3 provided at the upper part of the tank 2 is introduced from the suction duct 7 to the tank 2
Exhaust outside.

The dust adhering to the filter 4 is periodically dropped into the tank 2 by the compressed air jetted from the jet port 16 provided directly above the suction port 3, and the dust that has fallen is The dried grains are transferred to the next step and removed.

[0009]

1 is a longitudinal sectional view showing a state in which the present invention is used in a grain drying and storing device, and FIG. 2 is an enlarged sectional view taken along the line AA 'in FIG.

The tank 2 of the grain drying and storage device 1 shown in FIG.
Is formed in a cylindrical shape, and a floor plate 10 having air permeability is provided in the inner cavity portion of the tank 2. A discharge screw 11, which rotates about its axis while revolving, is provided on the upper surface of the floor plate 10 with the center of the floor plate 10 as the axis of revolution. A grain discharge port 12 for discharging grains in the tank 2 is provided below the axis of the discharge screw 11.

The tank 2 is provided in the space below the floor plate 10.
A burner 8 that communicates with a blower opening 13 provided at the lower portion of the side surface to form a blower chamber 14, and that feeds dry air to the grain accumulated in the tank 2 through the blower chamber 14 at the blower opening 13. The blower 9 provided with is connected to the grain dry storage device 1.

On the other hand, a grain supply cylinder 22 is provided in the upper center of the tank 2, a leveling device 17 is provided below the grain supply cylinder 22, and a rail provided around the inner wall surface of the tank 2 below the equalizer 17. A guide arm 19 is mounted horizontally in a substantially horizontal manner so as to revolve around the center of the upper part of the inner cavity of the tank 2 as an axis. A drive motor 23 is attached to one end of the guide arm 19 and a wheel 24 is attached to the other end thereof so as to revolve in the tank 2 along the radius 18. The arm 19 is provided with a stirring screw 20 having a rotation motor 25 provided on the upper end thereof.
The guide arm 19 is suspended so as to reciprocate in the axial direction.

In the illustrated embodiment, two stirring screws 20 are provided, but the number thereof is not limited to two.

Next, the dust collector B will be described. FIG.
As shown in FIG. 3, a plurality of suction ports 3 are formed on the ceiling wall of the tank 2, and a luff as a filter 4 is attached to the suction port 3 so as to project into the tank 2. Further, several L-shaped air pipes 15 for periodically blowing the compressed air generated by the compressor 21 are provided, and a plurality of projecting ports 16 are provided in the air pipes 15 just above the suction port 3 and the suction port 3 is provided.
It is provided to face. As shown in FIG. 3, a suction chamber 5 is provided below the ceiling of the tank 2 so as to cover the suction port 3, and a suction fan 6 is provided on one side wall of the suction chamber 5.
The suction duct 7 provided with is connected.

Next, the operation of this embodiment will be described.

When grains are stretched into the tank 2 from the grain supply cylinder 22, the grains are uniformly stretched in the tank 2 by the leveling device 17 provided at the upper center of the tank 2.

After the installation work is completed, the dry air warmed by the burner 8 is blown by the blower 9 through the blower chamber 14 provided in the lower portion of the tank 2 so as to have the air permeability.
Ventilate into the tank 2.

In the tank 2, the stirring screw 20 reciprocates on the guide arm 19 revolving in the upper part of the tank 2 while rotating on its own, so that the grain in the tank 2 moves from the upper layer to the upper surface of the floor plate 10. While stirring and moving the grains to the lower layer, the grains are dried by the dry air blown up from the lower part of the tank 2. Dust generated at this time is blown up to the upper part of the tank 2, and is adhered to the filter 4 attached to the suction port 3 provided on the upper part of the tank 2 by the suction fan 6 provided on the upper part of the tank 2, and the dust is sucked from the suction duct 7. The tank 2 from which the
Exhaust the air inside.

Dust adhering to the filter 4 is dropped into the tank 2 by periodically ejecting compressed air generated by the compressor 21 into the filter 4 from the ejection port 16, and the dust of the filter 4 is removed. Prevent clogging. Then, the dust that has fallen into the tank 2 is transferred to the next step together with the dried grain, and is removed in the next step and thereafter.

[0020]

Since the filter 4 provided in the tank 2 collects dust in the inside of the grain dry storage device 1,
Since it is not necessary to provide a large-scale dust collector that is conventionally used, or a duct pipe that connects the grain drying and storage device and the large-scale dust collector, it is possible to reduce cost and space. Since the treatment of sludge and sewage generated by the wet dust collector is unnecessary, the work of the user is reduced.

The jet port 16 directly above the suction port 3
It is possible to remove dust adhering to the filter 4 by periodically ejecting compressed air from
Prevents clogging of the filter 4.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line AA ′ of FIG.

FIG. 3 is a plan view showing a state in which the embodiment of the present invention is used in a grain drying and storing device.

FIG. 4 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

 1 Grain Dry Storage Device 2 Tank 3 Suction Port 4 Filter 5 Suction Chamber 6 Suction Fan 7 Suction Duct 8 Burner 9 Blower 10 Floor Plate 11 Discharge Screw 12 Grain Discharge Port 13 Blower Port 14 Blower Chamber 15 Air Pipe 16 Jet Port 17 Normal Separator 18 Rail 19 Guide arm 20 Stirring screw 21 Compressor 22 Grain supply cylinder 23 Drive motor 24 Wheel 25 Spin motor 50 Grain dryer 51 Auger 52 Suction duct 53 Supporting member 54 Dust suction port 55 Connection duct 56 Dust suction and duster 57 Suction port B Dust collector

Claims (2)

[Claims] 1. A tank floor plate 10 formed to be breathable,
An air blower 9 that ventilates from below the floor plate 10 and circulates dry air through the grains accumulated in the tank 2, and is installed horizontally on the upper surface of the floor plate 10, and the center of the floor plate 10 is the axis of revolution revolution. A discharging screw 11 that rotates while revolving, and discharges grains to a grain discharging port 12 that is opened in the central portion of the floor plate 10, and a leveling device 17 that is mounted in the center above the tank 2.
And a cylindrical or polygonal grain type grain drying and storing device having a stirring screw 20 for suspending the grain in the tank 2 and being hung around the center of the upper part of the inner cavity of the tank 2 as an axis of revolution. 1, the plurality of suction ports 3 are formed on the ceiling wall of the grain drying storage device 1, and the tank 2 is provided at each suction port 3.
The filter 4 protruding inside is attached to the suction port 3
A dry dust collecting apparatus in a grain drying and storing apparatus, characterized in that a suction chamber 5 is provided so as to cover the suction chamber 5, and a suction duct 7 having a suction fan 6 is connected to the suction chamber 5. 2. The dry dust collecting apparatus according to claim 1, wherein a jet port 16 branched from an air pipe 15 for sending compressed air is provided directly above each suction port 3. apparatus.